

| Parameter | Value |
|---|---|
| 19.2 V (“1” signal) | |
| Note | The meaning of the acknowledgement outputs can be freely parameterized, see user manual |
| Color | gray (RAL 7042) |
| Depth | 114.5 mm |
| Width | 22.5 mm |
| Height | 99 mm |
| Diameter | 11 mm |
| Certificate | UKCA-compliant |
| Designation | Ext 90 CT |
| Output name | Acknowledging contacts O1-O4 |
| Power range | 138 W ... 62 kW (400 V AC) |
| Product type | Electronic motor manager |
| Screw thread | M3 |
| Assembly note | in rows with zero spacing |
| Current range | 0.2 A ... 90 A |
| Measuring via | External push-through current transformers connected upstream |
| Mounting type | DIN rail mounting |
| Voltage range | 42 V AC ... 550 V AC |
| Basic accuracy | typ. 0.25 % (Tu= 20 °C, U= 400 V, Cos Phi= 0,8) |
| Operating mode | 100% operating factor |
| Product family | CONTACTRON |
| Status display | LED (yellow) |
| Article revision | 04 |
| Error indication | Red LED |
| Number of inputs | 4 (IN1 - IN4) |
| Number of phases | 3 |
| Residual voltage | < 100 mV |
| Stripping length | 8 mm |
| Connection method | Screw connection |
| Mounting position | any |
| Number of outputs | 4 |
| Tightening torque | 0.5 Nm ... 0.6 Nm (5-7 lbs-in) |
| Protective circuit | Suppressor diode |
| Degree of pollution | 2 |
| Number of positions | 9 |
| Rated surge voltage | 6 kV |
| Switching threshold | 9.6 V (“0” signal) |
| Degree of protection | IP20 |
| Output voltage range | 19.2 V DC ... 30 V DC |
| Overvoltage category | III |
| Number of connections | 1 |
| Standards/regulations | EN 60947-1 |
| Nominal output voltage | 24 V DC (semiconductor output) |
| Nominal supply voltage | 24 V DC |
| Continuous load current | 500 mA |
| Rated insulation voltage | 500 V |
| Surge voltage protection | > 33 V DC |
| Triggering voltage range | 19.2 V DC ... 30 V DC |
| Depth Current transformer | 56 mm |
| Operating voltage display | Green LED |
| Width Current transformer | 138 mm |
| Data communication display | green LED |
| Height Current transformer | 45 mm |
| Rated actuating current IC | 3.3 mA |
| Rated actuating voltage UC | 24 V DC |
| Conductor cross section AWG | 26 ... 12 |
| Control supply voltage range | 19.2 V DC ... 30 V DC |
| Nominal supply voltage range | 19.2 V DC ... 30 V DC |
| Conductor cross section rigid | 0.14 mm² ... 2.5 mm² |
| Ambient temperature (operation) | -25 °C ... 50 °C |
| Rated control supply current IS | < 33 mA |
| Conductor cross section flexible | 0.14 mm² ... 2.5 mm² |
| Primary round conductor (diameter) | 11 mm |
| Ambient temperature (storage/transport) | -40 °C ... 80 °C |
| Rated control circuit supply voltage US | 24 V DC |
| Maximum power dissipation for nominal condition | 2.5 W |
Technical specifications and performance data
Installation and operation guide